Intelligent fire extinguisher dynamic monitoring system based on Internet of Things
By collecting and analyzing fire extinguisher status data in real time through an IoT-based intelligent monitoring system, the problems of low efficiency and delayed monitoring in manual inspections have been solved, thereby improving the accuracy of fire extinguisher management and the speed of emergency response.
Patent Information
- Application Number
- CN202511417809.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-09-30
- Publication Date
- 2026-01-02
AI Technical Summary
The current management of fire extinguishers relies on manual inspections, which is inefficient and cannot be monitored in real time, resulting in delays and insufficient accuracy, thus affecting the speed of emergency response.
An IoT-based intelligent monitoring system is adopted, which collects the pressure and time data of fire extinguishers in real time through high-precision pressure sensors and radio frequency identification readers. Combined with environmental temperature compensation and correction, the system generates status judgment results and transmits them to a remote monitoring platform via wireless network to trigger local and remote alarms.
It enables real-time dynamic monitoring of fire extinguisher status, improving management efficiency and emergency response speed, and ensuring timely maintenance and accurate assessment of fire-fighting equipment.
Smart Images
Figure CN121243700A_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of fire safety technology, and in particular to an intelligent fire extinguisher dynamic monitoring system based on the Internet of Things. Background Technology
[0002] In current technologies, fire extinguisher management largely relies on manual inspections, which is inefficient and cannot be monitored in real time. This makes it difficult to detect problems such as insufficient pressure or expiration in a timely manner, resulting in significant delays. Although some IoT technologies are applied, traditional pressure monitoring equipment has limited accuracy, making it difficult to accurately report the status of fire extinguishers and affecting emergency response speed.
[0003] Therefore, there is an urgent need to provide a technical solution to address the above problems. Summary of the Invention
[0004] To address the aforementioned technical problems, this invention provides an intelligent fire extinguisher dynamic monitoring system based on the Internet of Things.
[0005] In a first aspect, the present invention provides an intelligent fire extinguisher dynamic monitoring system based on the Internet of Things, the technical solution of which is as follows: The monitoring module is used to collect real-time pressure data and time-sensitive status data of fire extinguishers; The processing module is used to determine the current state of the fire extinguisher based on the pressure data and the time status data, and generate a status determination result; The Internet of Things (IoT) communication module is used to transmit the status judgment result to the remote monitoring platform via a wireless network; The early warning module is used to trigger a local audible and visual alarm when the status judgment result indicates an abnormality, and to issue a remote alarm through the remote monitoring platform.
[0006] In one optional approach, the timeliness status data includes: validity period information; the monitoring module is specifically used for: The pressure simulation signal inside the fire extinguisher is collected by a high-precision pressure sensor at a preset sampling frequency, and the pressure simulation signal is converted into pressure data in the form of a digital signal. The validity period information is read from the electronic tag pre-installed on the fire extinguisher using an RFID reader.
[0007] In one alternative approach, the processing module is specifically used for: The pressure data is compared with a preset pressure safety threshold range. If the pressure data is lower than the lower limit of the pressure safety threshold range, the current state is determined to be an abnormal pressure deficiency. The validity period information is compared with the current system time. If the current system time is later than the validity period information, the current status is determined to be an expiration anomaly. Based on the current state, a state judgment result is generated that includes a normal state or a specific abnormal type; the specific abnormal type is: the pressure deficiency abnormality and / or the expiration abnormality.
[0008] In one alternative approach, the processing module is specifically used for: The system acquires ambient temperature data in real time and performs temperature compensation correction on the collected raw pressure data based on the ambient temperature data to generate the corrected pressure data. The corrected pressure data is compared with the pressure safety threshold range.
[0009] In one alternative approach, the correction formula for the pressure data is: ;in, This indicates the corrected pressure data. This represents the original pressure data. α This indicates the pressure-temperature coefficient of the extinguishing agent inside the fire extinguisher. This indicates the ambient temperature data. This indicates the standard temperature value during the factory calibration of the high-precision pressure sensor.
[0010] In one alternative approach, the processing module is specifically used for: Calculate the actual number of days between the date corresponding to the validity period information and the date corresponding to the current system time; The actual number of days difference is compared with the warning time threshold to determine the current status.
[0011] In one alternative approach, the expression for the actual number of days difference is: ;in, This represents the difference in actual number of days. This indicates the date corresponding to the validity period information. This indicates the date corresponding to the current system time; like If the current state is determined to be an expiration exception, then... This indicates the warning time threshold.
[0012] In one alternative approach, the IoT communication module is specifically used for: The status determination result and the unique identifier of the fire extinguisher are encapsulated into a transmission data packet of a specific format; The low-power wide area network or cellular mobile network protocol is dynamically selected for data transmission based on the size of the transmitted data packet and the current network signal strength. After the data transmission is completed, a confirmation receipt is received from the remote monitoring platform; If the confirmation receipt is not received within the preset timeout period, the data retransmission mechanism will be initiated until the transmission is successful.
[0013] In one alternative approach, the early warning module is specifically used for: If the status judgment result indicates that the pressure is insufficient or abnormal, then the first specific frequency audible and visual alarm is activated to trigger a local alarm. If the status judgment result indicates the expiration abnormality, then drive the second specific frequency audible and visual alarm to perform a local alarm; The system synchronously sends a warning message containing the unique identifier of the fire extinguisher and the specific type of abnormality to the remote monitoring platform via the IoT communication module, so that the remote monitoring platform can generate an alarm command based on the warning message and push it to at least one preset administrator terminal device to execute a remote alarm.
[0014] Secondly, this invention provides a method for dynamic monitoring of intelligent fire extinguishers based on the Internet of Things, the technical solution of which is as follows: Real-time acquisition of pressure and time-sensitive status data of fire extinguishers; Based on the pressure data and the time status data, the current status of the fire extinguisher is determined, and a status determination result is generated; The status judgment result is transmitted to the remote monitoring platform via a wireless network; When the status judgment result indicates an abnormality, a local audible and visual alarm is triggered, and a remote alarm is issued through the remote monitoring platform.
[0015] The technical solution of this invention solves the problems of low efficiency, monitoring lag and insufficient accuracy of manual inspection in the prior art by real-time dynamic monitoring and wireless transmission of the Internet of Things, effectively improving the management efficiency of fire extinguishers and ensuring the speed of fire emergency response.
[0016] The above description is merely an overview of the technical solution of the present invention. In order to better understand the technical means of the present invention and to implement it in accordance with the contents of the specification, and to make the above and other objects, features and advantages of the present invention more apparent and understandable, specific embodiments of the present invention are described below. Attached Figure Description
[0017] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the accompanying drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are merely some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without any creative effort.
[0018] The accompanying drawings are for illustrative purposes only and are not intended to limit the invention. Furthermore, the same reference numerals denote the same parts throughout the drawings. In the drawings: Figure 1 This is a schematic diagram of an embodiment of an intelligent fire extinguisher dynamic monitoring system based on the Internet of Things according to the present invention; Figure 2 This is a flowchart illustrating an embodiment of the IoT-based intelligent fire extinguisher dynamic monitoring method of the present invention. Detailed Implementation
[0019] Exemplary embodiments of the invention will now be described in more detail with reference to the accompanying drawings. While exemplary embodiments of the invention are shown in the drawings, it should be understood that the invention can be implemented in various forms and should not be limited to the embodiments set forth herein.
[0020] Figure 1 This diagram illustrates a structural schematic of an embodiment of an IoT-based intelligent fire extinguisher dynamic monitoring system provided by the present invention. Figure 1 As shown, the system includes: The monitoring module 110 is used to collect real-time pressure data and time status data of the fire extinguisher.
[0021] Here, "fire extinguisher" refers to a portable fire-fighting device containing extinguishing agent, used to extinguish initial fires, such as the ABC dry powder fire extinguishers installed in a shopping mall. "Pressure data" refers to digital signals reflecting the internal pressure of a fire extinguisher, collected by a high-precision pressure sensor, such as the 5.8 MPa pressure value obtained from real-time monitoring inside the fire extinguisher in the shopping mall. "Time-related status data" refers to information characterizing the time-related status of a fire extinguisher, such as the "production date January 2023" and "expiration date January 2028" information stored in the fire extinguisher's electronic tag.
[0022] The processing module 120 is used to determine the current state of the fire extinguisher based on the pressure data and the time status data, and generate a status determination result.
[0023] The current status refers to the real-time working status of the fire extinguisher as determined by the system. For example, the system determines that the fire extinguisher in the shopping mall is in a "pressure insufficiency abnormality" state. The status judgment result refers to the data generated by the processing module that contains the status judgment conclusion, such as "Fire extinguisher No. F001: Pressure insufficiency abnormality, needs to be handled in time".
[0024] The Internet of Things (IoT) communication module 130 is used to transmit the status judgment result to the remote monitoring platform via a wireless network.
[0025] In this context, "wireless network" refers to a wireless communication network used for data transmission, such as the NB-IoT low-power wide-area network used in the system. "Remote monitoring platform" refers to a central management system that receives and processes monitoring data, such as the cloud server of a fire protection IoT platform.
[0026] The early warning module 140 is used to trigger a local audible and visual alarm when the status judgment result indicates an abnormality, and to issue a remote alarm through the remote monitoring platform.
[0027] Local audible and visual alarms refer to on-site triggered auditory and visual alarm devices, such as the simultaneous activation of the buzzer and red warning light on a fire extinguisher. Remote alarms refer to alarm messages sent to remote management personnel, such as a text message notification to the mall's fire safety manager stating "F001 fire extinguisher pressure abnormality."
[0028] The technical solution of this embodiment solves the problems of low efficiency, monitoring lag and insufficient accuracy of manual inspection in the prior art by real-time dynamic monitoring and wireless transmission of the Internet of Things, effectively improving the management efficiency of fire extinguishers and ensuring the speed of fire emergency response.
[0029] In one optional embodiment, the timeliness status data includes: validity period information; the monitoring module 110 is specifically used for: The pressure analog signal inside the fire extinguisher is collected by a high-precision pressure sensor at a preset sampling frequency, and the pressure analog signal is converted into pressure data in digital signal form.
[0030] The expiration date information refers to the specified effective usage time of the fire extinguisher, such as "expiration date: January 15, 2028" as indicated on the fire extinguisher label. The preset sampling frequency refers to the data acquisition interval set by the pressure sensor, such as a system setting to collect pressure data every 30 minutes. The pressure analog signal refers to the initial continuous electrical signal generated by the pressure sensor, such as the 4-20mA current signal output by the pressure sensor.
[0031] The validity period information is read from the electronic tag pre-installed on the fire extinguisher using an RFID reader.
[0032] In this context, an RFID reader refers to a device used to read information from electronic tags, such as the 13.56MHz RFID reader used in this system. An electronic tag refers to an RFID tag that stores information about the fire extinguisher, such as a passive RFID tag attached to the fire extinguisher bottle.
[0033] Among the above-mentioned optional methods, high-precision sensors and radio frequency identification are further used to optimize data acquisition efficiency, realize dynamic monitoring of fire extinguisher pressure and expiration date, and ensure data accuracy.
[0034] In an alternative embodiment, the processing module 120 is specifically used for: The pressure data is compared with a preset pressure safety threshold range. If the pressure data is lower than the lower limit of the pressure safety threshold range, the current state is determined to be an abnormal pressure deficiency.
[0035] The pressure safety threshold range refers to the set normal pressure range, such as the system setting the normal pressure range for fire extinguishers to be 5.0-6.0 MPa. Insufficient pressure refers to a state where the pressure is below the normal range, such as a fire extinguisher pressure of 4.5 MPa, which is below the minimum threshold of 5.0 MPa.
[0036] The validity period information is compared with the current system time. If the current system time is later than the validity period information, the current status is determined to be an expired anomaly.
[0037] The current system time refers to the real-time time of the monitoring system itself, such as "May 20, 2024" displayed on the system's internal clock. Expiration anomaly refers to a state where the product has exceeded its expiration date, such as a fire extinguisher that was valid until January 2024 and has now expired for four months.
[0038] Based on the current state, a state judgment result is generated that includes a normal state or a specific abnormal type; the specific abnormal type is: the pressure deficiency abnormality and / or the expiration abnormality.
[0039] Among the above-mentioned optional methods, the status judgment logic can be further refined to effectively distinguish between insufficient pressure and expired anomalies, generate accurate judgment results, and improve the system's intelligence level.
[0040] In an alternative embodiment, the processing module 120 is specifically used for: The system acquires ambient temperature data in real time and performs temperature compensation correction on the collected raw pressure data based on the ambient temperature data to generate the corrected pressure data.
[0041] Ambient temperature data refers to the temperature value collected around the fire extinguisher, such as an ambient temperature of 25°C monitored by a temperature sensor. Raw pressure data refers to the pressure measurement value without temperature compensation, such as a pressure value of 5.8 MPa measured at 25°C.
[0042] The corrected pressure data is compared with the pressure safety threshold range.
[0043] Among the above-mentioned optional methods, an ambient temperature compensation mechanism is further introduced to correct pressure data, improve monitoring accuracy, reduce misjudgments, and ensure the reliability of fire extinguisher status.
[0044] In one alternative approach, the correction formula for the pressure data is: The correction formula for the pressure data is: ;in, This indicates the corrected pressure data. This represents the original pressure data. α This indicates the pressure-temperature coefficient of the extinguishing agent inside the fire extinguisher. This indicates the ambient temperature data. This indicates the standard temperature value during the factory calibration of the high-precision pressure sensor.
[0045] The pressure-temperature coefficient refers to the ratio of the extinguishing agent pressure to the temperature change; for example, the pressure-temperature coefficient of a dry powder fire extinguisher is 0.05 / ℃. The standard temperature value refers to the reference temperature used for pressure sensor calibration; for example, the factory calibration temperature for this sensor is 20℃.
[0046] It should be noted that the pressure data correction formula is based on the gas pressure-temperature law, establishing a linear compensation relationship between temperature changes and pressure changes by introducing a pressure-temperature coefficient. The formula works by eliminating the deviation caused by ambient temperature fluctuations in pressure sensor measurements, uniformly correcting pressure values measured at different temperatures to equivalent values at a standard temperature, thereby ensuring the accuracy and consistency of pressure status determination.
[0047] Among the above-mentioned optional methods, a calibration formula is further provided to accurately calculate the pressure compensation value, thereby further improving the accuracy of monitoring data and system reliability.
[0048] In an alternative embodiment, the processing module 120 is specifically used for: Calculate the actual number of days between the date corresponding to the validity period information and the date corresponding to the current system time.
[0049] The actual number of days difference refers to the difference between the validity period and the current time. For example, if the calculation shows that there are 60 days left until the validity period expires.
[0050] The actual number of days difference is compared with the warning time threshold to determine the current status.
[0051] The warning time threshold refers to the remaining number of days before a warning is triggered, such as the 30-day warning threshold set by the system.
[0052] Among the above-mentioned optional methods, further calculation of the remaining validity period and setting of early warning thresholds can help detect the risk of expiration in advance, providing sufficient response time for fire management.
[0053] In one alternative approach, the expression for the actual number of days difference is: The expression for the actual number of days difference is: ;in, This represents the difference in actual number of days. This indicates the date corresponding to the validity period information. This indicates the date corresponding to the current system time; like If the current state is determined to be an expiration exception, then... This indicates the warning time threshold.
[0054] It should be noted that the expression for the actual number of days difference is based on direct arithmetic operations on date values. It accurately calculates the remaining days by converting the expiration date into a numerical format and subtracting it from the current date. The expression works by converting calendar time into points on a continuous numerical timeline, and objectively quantifying the time interval by calculating the difference between two points, thus providing an accurate numerical basis for determining expiration.
[0055] Among the above-mentioned optional methods, an early warning mechanism based on the actual number of days difference can be further used to automatically determine the expired status of fire extinguishers and ensure timely maintenance of fire extinguishers.
[0056] In one alternative embodiment, the IoT communication module 130 is specifically used for: The status determination result and the unique identifier of the fire extinguisher are encapsulated into a transmission data packet of a specific format.
[0057] The unique identifier refers to the unique identification code of each fire extinguisher, such as the "F001" number of the fire extinguisher. The transmission data packet refers to the encapsulated data transmission unit, such as a data packet containing the information "F001, insufficient pressure, 20240520".
[0058] The low-power wide area network (LPWAN) or cellular mobile network (CRM) protocol is dynamically selected for data transmission based on the size of the transmitted data packet and the current network signal strength.
[0059] The current network signal strength refers to the network quality index during communication, such as the detected NB-IoT network signal strength being -85dBm.
[0060] Specifically, the size of the transmitted data packet is obtained and the current network signal strength is detected; the size of the transmitted data packet is compared with a preset size threshold, and the current network signal strength is compared with a preset signal strength threshold; based on the comparison results, when the transmitted data packet is small and the current network signal strength is weak, a low-power wide area network protocol is selected for data transmission; when the transmitted data packet is large or the current network signal strength is strong, a cellular mobile network protocol is selected for data transmission, and a connection is established and data transmission is completed according to the selected protocol.
[0061] After the data transmission is completed, a confirmation receipt is received from the remote monitoring platform.
[0062] Specifically, after data transmission is completed, a receive timer is started and the system enters a waiting state, continuously listening for confirmation data packets returned by the remote monitoring platform. When a data packet is received, its protocol format is parsed and the consistency between the included transmission sequence number and the sent data packet is verified. Once a match is confirmed, the system is deemed to have successfully received the confirmation receipt and the current transmission process is terminated.
[0063] If the confirmation receipt is not received within the preset timeout period, the data retransmission mechanism will be initiated until the transmission is successful.
[0064] The preset timeout refers to the time limit for waiting for a response, such as setting the data transmission timeout to 30 seconds. The data retransmission mechanism refers to the retransmission strategy after data transmission failure, such as using an exponential backoff algorithm for data retransmission.
[0065] Specifically, if no acknowledgment is received within the preset timeout period, the data retransmission process is automatically triggered. The retransmission counter value is incremented by one and it is determined whether the maximum retransmission number threshold is exceeded. If it is not exceeded, the original transmission data packet is retransmitted while the receive timer is reset and the system waits for an acknowledgment again. If the maximum retransmission number threshold is exceeded, a transmission failure status flag is generated and the retransmission operation is stopped.
[0066] Among the above-mentioned optional methods, data transmission efficiency can be further optimized and communication stability can be ensured by dynamically selecting low-power or cellular network protocols.
[0067] In one alternative embodiment, the early warning module 140 is specifically used for: If the status judgment result indicates that the pressure is insufficient or abnormal, then a first specific frequency audible and visual alarm is activated to trigger a local alarm.
[0068] The first specific frequency refers to the audible and visual characteristics of a pressure abnormality alarm, such as triggering a 1kHz sound frequency and a red flash when the pressure is insufficient. An audible and visual alarm refers to an alarm device that emits sound and light signals, such as the multi-functional alarm on this fire extinguisher unit.
[0069] Specifically, after receiving the status judgment result, the abnormal type identifier contained therein is parsed. When the insufficient pressure abnormal identifier is identified, a pulse drive signal of a first specific frequency is generated. The pulse drive signal is output to the control circuit of the sound and light alarm to simultaneously activate the audio generator to generate continuous high-frequency sound waves and the LED light source to emit red flashing light, thereby completing the triggering of the local alarm function.
[0070] If the status judgment result indicates the expiration abnormality, then the second specific frequency audible and visual alarm is activated to trigger a local alarm.
[0071] The second specific frequency refers to the audible and visual characteristics of an expired alarm, such as triggering a 2kHz sound frequency and a yellow flash when the product expires.
[0072] Specifically, after receiving the status judgment result, the abnormal type identifier contained therein is parsed. When an expired abnormal identifier is identified, a pulse drive signal of a second specific frequency is generated. The pulse drive signal is output to the control circuit of the sound and light alarm to simultaneously activate the audio generator to generate intermittent low-frequency sound waves and the LED light source to emit yellow flashing light, thereby completing the triggering of the local alarm function.
[0073] The system synchronously sends a warning message containing the unique identifier of the fire extinguisher and the specific type of abnormality to the remote monitoring platform via the IoT communication module, so that the remote monitoring platform can generate an alarm command based on the warning message and push it to at least one preset administrator terminal device to execute a remote alarm.
[0074] Alarm commands refer to alarm commands generated by the remote platform, such as the platform-generated command to "send an alarm SMS to administrator A". Administrator terminal devices refer to devices that receive alarm information, such as the mobile phone of the shopping mall fire safety administrator and the computer in the monitoring center.
[0075] Specifically, upon triggering a local alarm, the unique identifier of the fire extinguisher and the specific anomaly type are encapsulated into a standardized warning information data packet. This data packet is then sent to the remote monitoring platform via the transmission interface of the IoT communication module. After receiving the packet, the remote monitoring platform parses its contents and generates a corresponding alarm command. Finally, the alarm command is pushed to at least one administrator terminal device via a preset communication interface to complete the remote alarm.
[0076] Among the above-mentioned optional methods, different frequency audible and visual alarms can be used to distinguish abnormal types, and remote alarms can be triggered simultaneously to improve the speed of emergency response and ensure the efficiency of fire management.
[0077] Figure 2 This diagram illustrates a flowchart of an embodiment of an IoT-based intelligent fire extinguisher dynamic monitoring method provided by the present invention. Figure 2 As shown, it includes the following steps: S1. Real-time acquisition of pressure data and time status data of fire extinguishers; S2. Based on the pressure data and the time status data, determine the current status of the fire extinguisher and generate a status determination result; S3. Transmit the status judgment result to the remote monitoring platform via a wireless network; S4. When the status judgment result indicates an abnormality, a local audible and visual alarm is triggered, and a remote alarm is issued through the remote monitoring platform.
[0078] The technical solution of this embodiment solves the problems of low efficiency, monitoring lag and insufficient accuracy of manual inspection in the prior art by real-time dynamic monitoring and wireless transmission of the Internet of Things, effectively improving the management efficiency of fire extinguishers and ensuring the speed of fire emergency response.
[0079] Furthermore, the system provided in the above embodiments is only illustrated by the division of the above functional modules. In practical applications, the above functions can be assigned to different functional modules as needed, that is, the system can be divided into different functional modules according to the actual situation to complete all or part of the functions described above. In addition, the system and method embodiments provided in the above embodiments belong to the same concept, and their specific implementation process can be found in the method embodiments, which will not be repeated here.
[0080] The above description is merely a preferred embodiment of the present invention and an explanation of the technical principles employed. Those skilled in the art should understand that the scope of disclosure in this invention is not limited to technical solutions formed by specific combinations of the above-described technical features, but should also cover other technical solutions formed by arbitrary combinations of the above-described technical features or their equivalents without departing from the above-disclosed concept. For example, technical solutions formed by substituting the above features with (but not limited to) technical features with similar functions disclosed in this invention.
[0081] It should be noted that the terms "first," "second," etc., used in the specification and claims of this application are used to distinguish similar objects and represent a limitation on a specific order or sequence. Where appropriate, the order of use for similar objects can be interchanged so that the embodiments of this application described herein can be implemented in an order other than that shown or described.
[0082] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention.
Claims
1. A smart fire extinguisher dynamic monitoring system based on the Internet of Things, characterized in that, The system includes: The monitoring module is used to collect real-time pressure data and time-sensitive status data of fire extinguishers; The processing module is used to determine the current state of the fire extinguisher based on the pressure data and the time status data, and generate a status determination result; The Internet of Things (IoT) communication module is used to transmit the status judgment result to the remote monitoring platform via a wireless network; The early warning module is used to trigger a local audible and visual alarm when the status judgment result indicates an abnormality, and to issue a remote alarm through the remote monitoring platform.
2. The IoT-based intelligent fire extinguisher dynamic monitoring system according to claim 1, characterized in that, The timeliness status data includes: validity period information; the monitoring module is specifically used for: The pressure simulation signal inside the fire extinguisher is collected by a high-precision pressure sensor at a preset sampling frequency, and the pressure simulation signal is converted into pressure data in the form of a digital signal. The validity period information is read from the electronic tag pre-installed on the fire extinguisher using an RFID reader.
3. The IoT-based intelligent fire extinguisher dynamic monitoring system according to claim 2, characterized in that, The processing module is specifically used for: The pressure data is compared with a preset pressure safety threshold range. If the pressure data is lower than the lower limit of the pressure safety threshold range, the current state is determined to be an abnormal pressure deficiency. The validity period information is compared with the current system time. If the current system time is later than the validity period information, the current status is determined to be an expiration anomaly. Based on the current state, a state judgment result is generated that includes a normal state or a specific abnormal type; the specific abnormal type is: the pressure deficiency abnormality and / or the expiration abnormality.
4. The IoT-based intelligent fire extinguisher dynamic monitoring system according to claim 3, characterized in that, The processing module is specifically used for: The system acquires ambient temperature data in real time and performs temperature compensation correction on the collected raw pressure data based on the ambient temperature data to generate the corrected pressure data. The corrected pressure data is compared with the pressure safety threshold range.
5. The IoT-based intelligent fire extinguisher dynamic monitoring system according to claim 4, characterized in that, The correction formula for the pressure data is: ;in, This indicates the corrected pressure data. This represents the original pressure data. α This indicates the pressure-temperature coefficient of the extinguishing agent inside the fire extinguisher. This indicates the ambient temperature data. This indicates the standard temperature value during the factory calibration of the high-precision pressure sensor.
6. The IoT-based intelligent fire extinguisher dynamic monitoring system according to claim 3, characterized in that, The processing module is specifically used for: Calculate the actual number of days between the date corresponding to the validity period information and the date corresponding to the current system time; The actual number of days difference is compared with the warning time threshold to determine the current status.
7. The IoT-based intelligent fire extinguisher dynamic monitoring system according to claim 6, characterized in that, The expression for the actual number of days difference is: ;in, This represents the difference in actual number of days. This indicates the date corresponding to the validity period information. This indicates the date corresponding to the current system time; like If the current state is determined to be an expiration exception, then... This indicates the warning time threshold.
8. The IoT-based intelligent fire extinguisher dynamic monitoring system according to any one of claims 3 to 7, characterized in that, The IoT communication module is specifically used for: The status determination result and the unique identifier of the fire extinguisher are encapsulated into a transmission data packet of a specific format; The low-power wide area network or cellular mobile network protocol is dynamically selected for data transmission based on the size of the transmitted data packet and the current network signal strength. After the data transmission is completed, a confirmation receipt is received from the remote monitoring platform; If the confirmation receipt is not received within the preset timeout period, the data retransmission mechanism will be initiated until the transmission is successful.
9. The IoT-based intelligent fire extinguisher dynamic monitoring system according to claim 8, characterized in that, The early warning module is specifically used for: If the status judgment result indicates that the pressure is insufficient or abnormal, then the first specific frequency audible and visual alarm is activated to trigger a local alarm. If the status judgment result indicates the expiration abnormality, then drive the second specific frequency audible and visual alarm to perform a local alarm; The system synchronously sends a warning message containing the unique identifier of the fire extinguisher and the specific type of abnormality to the remote monitoring platform via the IoT communication module, so that the remote monitoring platform can generate an alarm command based on the warning message and push it to at least one preset administrator terminal device to execute a remote alarm.
10. A method for dynamic monitoring of intelligent fire extinguishers based on the Internet of Things, characterized in that, The method includes: Real-time acquisition of pressure and time-sensitive status data of fire extinguishers; Based on the pressure data and the time status data, the current status of the fire extinguisher is determined, and a status determination result is generated; The status judgment result is transmitted to the remote monitoring platform via a wireless network; When the status judgment result indicates an abnormality, a local audible and visual alarm is triggered, and a remote alarm is issued through the remote monitoring platform.